Hey so I have a 2002 WRX and it has the following mods on it:
HKS Superflow Intake
Perrin Up pipe
Perrin Down Pipe
Unknown 3" Exhaust turbo back with custom axle back setup with a 4" outlet
Stock Turbo as well.
Lowered on Perrin springs as well just fyi.
Basically I am just wondering what kind of numbers I can expect this to put down?